PT123.S2.Q13

PrepTest 123 - Section 2 - Question 13

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Standard aluminum soft-drink cans do not vary in the amount of aluminum that they contain. Fifty percent of the aluminum contained in a certain group (M) of standard aluminum soft-drink cans was recycled from another group (L) of used, standard aluminum soft-drink cans. Since all the cans in L were recycled into cans in M and since the amount of material other than aluminum in an aluminum can is negligible, it follows that M contains twice as many cans as L.

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13.

The conclusion of the argument follows logically if which one of the following is assumed?

a

The aluminum in the cans of M cannot be recycled further.

b

Recycled aluminum is of poorer quality than unrecycled aluminum.

c

All of the aluminum in an aluminum can is recovered when the can is recycled.

d

None of the soft-drink cans in group L had been made from recycled aluminum.

e

Aluminum soft-drink cans are more easily recycled than are soft-drink cans made from other materials.

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